www.rsgb.org/propquest – FoF2 critical frequency and extrapolated MUFs www.rsgb.org/predtest – ITURHFPROP-powered predictions (G4FKH) www.rsgb.org/proppy – ITURHFPROP-powered predictions (HZ1JW) www.rsgb.org/voacap – VOACAP-powered predictions (OH6BG) www.rsgb.org/g0kya – At-a-glance hourly VOACAP predictions (G0KYA) www.predtest.uk – Predtest ITURHFPROP predictions soundbytes.asia/proppy/ – Proppy ITURHFPROP predictions www.voacap.com – VOACAP Online
Icom has released new firmware updates for the popular 7300 and 9700 rigs taking the revision level for the 7300 to 1.40 and the 9700 1.30. The software can be found on the Icom Japan site: Icom 7300 Firmware for the 7300 and Icom 9700 Firmware for the 9700. The PDF change notes for the… Continue reading Icom Firmware Updates for 7300 and 9700
On the Rat’s internal MatterMost chat site we were talking about how the new Icom 705 portable rig would perform transmit-wise on 2/70 compared with a couple of recent rigs which have come in for some criticism in this respect. Carl ICR got busy and put together some graphs based on published QST reviews. Below… Continue reading Rig Phase Noise Transmit Measurements
G3RAT displays a propagation widget in its sidebar from https://www.hamqsl.com/solar.html which show some useful propagation data in a minimal format. For more in depth data and analysis of solar data you may find these sites to be of interest: https://www.solarham.net/ https://www.swpc.noaa.gov/products/aurora-30-minute-forecast http://www.geomag.bgs.ac.uk/education/current_activity.html https://www.swpc.noaa.gov/products/planetary-k-index http://www.solen.info/solar/ https://www.spaceweather.gc.ca/forecast-prevision/short-court/sfst-2-en.php For specific hf propagation between two sites here are some… Continue reading Propagation Resources
The Rats have several call signs. Here’s a quick rundown. We started off with M0HRF (randomly allocated by Ofcom) and used that in our early days. You may still hear it on the bands today. We added M0VUC as a back-up in case we ever needed to have two stations on the air. This call… Continue reading Rat Callsigns
Congratulations to Anthony G7LRQ who was placed 1st overall in the 144MHz AO section of the 2020 RSGB Christmas cumulatives contests by finishing 2nd (27/12), 1st (28/12) and 3rd (29/12). He also finished 2nd in 432 AO section, and finished 2nd overall in the AO general standings.
Founder Rat and group secretary Carl m0icr has an excellent article about getting started on his blog https://m0icr.com/beginners-guide-to-vhf-contesting If you’re new to contesting or even just need a refresher then give it a read. Any questions pop along to our Facebook page – click FB icon link on right! Be sure to check out the… Continue reading Beginners Guide to VHF Contesting
This post will be regularly updated with new Rat videos showing what we get up to in weekend contests. First up is National Field Day 2018 from Walbury Hill G/SE-001 – a very hot weekend. NFD 2018 Walbury Hill In contrast here are the Rats in action battling Storm Freya in the 2019… Continue reading Rats in Action!
The Rats came second overall in the RSGB vhf/uhf UKAC contests in both 2018 and 2019. We won the General club section of the AFS hf/vhf/uhf series in 2019-20.
The Rats have had many contest top 3 places since we started in 2014/15. Here are some of the earlier certificates won by the group. Click to view in new window.